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authorAnton Blanchard <anton@samba.org>2013-08-06 20:01:46 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-08-14 09:33:35 +0400
commit7ffcf8ec26f4b94b95b1297131d223b121d951e5 (patch)
tree7b4b47eaeafe56c253350b14470fecf03b40277f /arch/powerpc/kvm/book3s_64_slb.S
parentc72cd555e828b710bce8c3635254dbb483397142 (diff)
downloadlinux-7ffcf8ec26f4b94b95b1297131d223b121d951e5.tar.xz
powerpc: Fix little endian lppaca, slb_shadow and dtl_entry
The lppaca, slb_shadow and dtl_entry hypervisor structures are big endian, so we have to byte swap them in little endian builds. LE KVM hosts will also need to be fixed but for now add an #error to remind us. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_slb.S')
-rw-r--r--arch/powerpc/kvm/book3s_64_slb.S4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_64_slb.S b/arch/powerpc/kvm/book3s_64_slb.S
index 4f0caecc0f9d..4f12e8f0c718 100644
--- a/arch/powerpc/kvm/book3s_64_slb.S
+++ b/arch/powerpc/kvm/book3s_64_slb.S
@@ -17,6 +17,10 @@
* Authors: Alexander Graf <agraf@suse.de>
*/
+#ifdef __LITTLE_ENDIAN__
+#error Need to fix SLB shadow accesses in little endian mode
+#endif
+
#define SHADOW_SLB_ESID(num) (SLBSHADOW_SAVEAREA + (num * 0x10))
#define SHADOW_SLB_VSID(num) (SLBSHADOW_SAVEAREA + (num * 0x10) + 0x8)
#define UNBOLT_SLB_ENTRY(num) \